{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49328", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.538Z", "datePublished": "2025-02-26T02:10:49.590Z", "dateUpdated": "2025-05-04T08:35:18.005Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:35:18.005Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix use-after-free by removing a non-RCU wcid pointer\n\nFixes an issue caught by KASAN about use-after-free in mt76_txq_schedule\nby protecting mtxq->wcid with rcu_lock between mt76_txq_schedule and\nsta_info_[alloc, free].\n\n[18853.876689] ==================================================================\n[18853.876751] BUG: KASAN: use-after-free in mt76_txq_schedule+0x204/0xaf8 [mt76]\n[18853.876773] Read of size 8 at addr ffffffaf989a2138 by task mt76-tx phy0/883\n[18853.876786]\n[18853.876810] CPU: 5 PID: 883 Comm: mt76-tx phy0 Not tainted 5.10.100-fix-510-56778d365941-kasan #5 0b01fbbcf41a530f52043508fec2e31a4215\n\n[18853.876840] Call trace:\n[18853.876861] dump_backtrace+0x0/0x3ec\n[18853.876878] show_stack+0x20/0x2c\n[18853.876899] dump_stack+0x11c/0x1ac\n[18853.876918] print_address_description+0x74/0x514\n[18853.876934] kasan_report+0x134/0x174\n[18853.876948] __asan_report_load8_noabort+0x44/0x50\n[18853.876976] mt76_txq_schedule+0x204/0xaf8 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877002] mt76_txq_schedule_all+0x2c/0x48 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877030] mt7921_tx_worker+0xa0/0x1cc [mt7921_common f0875ebac9d7b4754e1010549e7db50fbd90a047]\n[18853.877054] __mt76_worker_fn+0x190/0x22c [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877071] kthread+0x2f8/0x3b8\n[18853.877087] ret_from_fork+0x10/0x30\n[18853.877098]\n[18853.877112] Allocated by task 941:\n[18853.877131] kasan_save_stack+0x38/0x68\n[18853.877147] __kasan_kmalloc+0xd4/0xfc\n[18853.877163] kasan_kmalloc+0x10/0x1c\n[18853.877177] __kmalloc+0x264/0x3c4\n[18853.877294] sta_info_alloc+0x460/0xf88 [mac80211]\n[18853.877410] ieee80211_prep_connection+0x204/0x1ee0 [mac80211]\n[18853.877523] ieee80211_mgd_auth+0x6c4/0xa4c [mac80211]\n[18853.877635] ieee80211_auth+0x20/0x2c [mac80211]\n[18853.877733] rdev_auth+0x7c/0x438 [cfg80211]\n[18853.877826] cfg80211_mlme_auth+0x26c/0x390 [cfg80211]\n[18853.877919] nl80211_authenticate+0x6d4/0x904 [cfg80211]\n[18853.877938] genl_rcv_msg+0x748/0x93c\n[18853.877954] netlink_rcv_skb+0x160/0x2a8\n[18853.877969] genl_rcv+0x3c/0x54\n[18853.877985] netlink_unicast_kernel+0x104/0x1ec\n[18853.877999] netlink_unicast+0x178/0x268\n[18853.878015] netlink_sendmsg+0x3cc/0x5f0\n[18853.878030] sock_sendmsg+0xb4/0xd8\n[18853.878043] ____sys_sendmsg+0x2f8/0x53c\n[18853.878058] ___sys_sendmsg+0xe8/0x150\n[18853.878071] __sys_sendmsg+0xc4/0x1f4\n[18853.878087] __arm64_compat_sys_sendmsg+0x88/0x9c\n[18853.878101] el0_svc_common+0x1b4/0x390\n[18853.878115] do_el0_svc_compat+0x8c/0xdc\n[18853.878131] el0_svc_compat+0x10/0x1c\n[18853.878146] el0_sync_compat_handler+0xa8/0xcc\n[18853.878161] el0_sync_compat+0x188/0x1c0\n[18853.878171]\n[18853.878183] Freed by task 10927:\n[18853.878200] kasan_save_stack+0x38/0x68\n[18853.878215] kasan_set_track+0x28/0x3c\n[18853.878228] kasan_set_free_info+0x24/0x48\n[18853.878244] __kasan_slab_free+0x11c/0x154\n[18853.878259] kasan_slab_free+0x14/0x24\n[18853.878273] slab_free_freelist_hook+0xac/0x1b0\n[18853.878287] kfree+0x104/0x390\n[18853.878402] sta_info_free+0x198/0x210 [mac80211]\n[18853.878515] __sta_info_destroy_part2+0x230/0x2d4 [mac80211]\n[18853.878628] __sta_info_flush+0x300/0x37c [mac80211]\n[18853.878740] ieee80211_set_disassoc+0x2cc/0xa7c [mac80211]\n[18853.878851] ieee80211_mgd_deauth+0x4a4/0x10a0 [mac80211]\n[18853.878962] ieee80211_deauth+0x20/0x2c [mac80211]\n[18853.879057] rdev_deauth+0x7c/0x438 [cfg80211]\n[18853.879150] cfg80211_mlme_deauth+0x274/0x414 [cfg80211]\n[18853.879243] cfg80211_mlme_down+0xe4/0x118 [cfg80211]\n[18853.879335] cfg80211_disconnect+0x218/0x2d8 [cfg80211]\n[18853.879427] __cfg80211_leave+0x17c/0x240 [cfg80211]\n[18853.879519] cfg80211_leave+0x3c/0x58 [cfg80211]\n[18853.879611] wiphy_suspend+0xdc/0x200 [cfg80211]\n[18853.879628] dpm_run_callback+0x58/0x408\n[18853.879642] __device_suspend+0x4cc/0x864\n[18853.879658] async_suspend+0x34/0xf4\n[18\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c", "drivers/net/wireless/mediatek/mt76/mt76.h", "drivers/net/wireless/mediatek/mt76/mt7603/main.c", "drivers/net/wireless/mediatek/mt76/mt7615/main.c", "drivers/net/wireless/mediatek/mt76/mt76x02_util.c", "drivers/net/wireless/mediatek/mt76/mt7915/main.c", "drivers/net/wireless/mediatek/mt76/mt7921/main.c", "drivers/net/wireless/mediatek/mt76/tx.c"], "versions": [{"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "4448327b41738dbfcda680eb4935ff835568f468", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "d5f77f1dbb59feae81f88e44551e8e1d8a802d9a", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "51fb1278aa57ae0fc54adaa786e1965362bed4fb", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c", "drivers/net/wireless/mediatek/mt76/mt76.h", "drivers/net/wireless/mediatek/mt76/mt7603/main.c", "drivers/net/wireless/mediatek/mt76/mt7615/main.c", "drivers/net/wireless/mediatek/mt76/mt76x02_util.c", "drivers/net/wireless/mediatek/mt76/mt7915/main.c", "drivers/net/wireless/mediatek/mt76/mt7921/main.c", "drivers/net/wireless/mediatek/mt76/tx.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.58", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.15.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.17.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4448327b41738dbfcda680eb4935ff835568f468"}, {"url": "https://git.kernel.org/stable/c/e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d"}, {"url": "https://git.kernel.org/stable/c/d5f77f1dbb59feae81f88e44551e8e1d8a802d9a"}, {"url": "https://git.kernel.org/stable/c/51fb1278aa57ae0fc54adaa786e1965362bed4fb"}], "title": "mt76: fix use-after-free by removing a non-RCU wcid pointer", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49328", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-27T18:16:47.103514Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:22:34.046Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49328", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.538Z", "datePublished": "2025-02-26T02:10:49.590Z", "dateUpdated": "2025-02-27T18:22:34.046Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-02-26T14:25:53.923Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix use-after-free by removing a non-RCU wcid pointer\n\nFixes an issue caught by KASAN about use-after-free in mt76_txq_schedule\nby protecting mtxq->wcid with rcu_lock between mt76_txq_schedule and\nsta_info_[alloc, free].\n\n[18853.876689] ==================================================================\n[18853.876751] BUG: KASAN: use-after-free in mt76_txq_schedule+0x204/0xaf8 [mt76]\n[18853.876773] Read of size 8 at addr ffffffaf989a2138 by task mt76-tx phy0/883\n[18853.876786]\n[18853.876810] CPU: 5 PID: 883 Comm: mt76-tx phy0 Not tainted 5.10.100-fix-510-56778d365941-kasan #5 0b01fbbcf41a530f52043508fec2e31a4215\n\n[18853.876840] Call trace:\n[18853.876861] dump_backtrace+0x0/0x3ec\n[18853.876878] show_stack+0x20/0x2c\n[18853.876899] dump_stack+0x11c/0x1ac\n[18853.876918] print_address_description+0x74/0x514\n[18853.876934] kasan_report+0x134/0x174\n[18853.876948] __asan_report_load8_noabort+0x44/0x50\n[18853.876976] mt76_txq_schedule+0x204/0xaf8 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877002] mt76_txq_schedule_all+0x2c/0x48 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877030] mt7921_tx_worker+0xa0/0x1cc [mt7921_common f0875ebac9d7b4754e1010549e7db50fbd90a047]\n[18853.877054] __mt76_worker_fn+0x190/0x22c [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877071] kthread+0x2f8/0x3b8\n[18853.877087] ret_from_fork+0x10/0x30\n[18853.877098]\n[18853.877112] Allocated by task 941:\n[18853.877131] kasan_save_stack+0x38/0x68\n[18853.877147] __kasan_kmalloc+0xd4/0xfc\n[18853.877163] kasan_kmalloc+0x10/0x1c\n[18853.877177] __kmalloc+0x264/0x3c4\n[18853.877294] sta_info_alloc+0x460/0xf88 [mac80211]\n[18853.877410] ieee80211_prep_connection+0x204/0x1ee0 [mac80211]\n[18853.877523] ieee80211_mgd_auth+0x6c4/0xa4c [mac80211]\n[18853.877635] ieee80211_auth+0x20/0x2c [mac80211]\n[18853.877733] rdev_auth+0x7c/0x438 [cfg80211]\n[18853.877826] cfg80211_mlme_auth+0x26c/0x390 [cfg80211]\n[18853.877919] nl80211_authenticate+0x6d4/0x904 [cfg80211]\n[18853.877938] genl_rcv_msg+0x748/0x93c\n[18853.877954] netlink_rcv_skb+0x160/0x2a8\n[18853.877969] genl_rcv+0x3c/0x54\n[18853.877985] netlink_unicast_kernel+0x104/0x1ec\n[18853.877999] netlink_unicast+0x178/0x268\n[18853.878015] netlink_sendmsg+0x3cc/0x5f0\n[18853.878030] sock_sendmsg+0xb4/0xd8\n[18853.878043] ____sys_sendmsg+0x2f8/0x53c\n[18853.878058] ___sys_sendmsg+0xe8/0x150\n[18853.878071] __sys_sendmsg+0xc4/0x1f4\n[18853.878087] __arm64_compat_sys_sendmsg+0x88/0x9c\n[18853.878101] el0_svc_common+0x1b4/0x390\n[18853.878115] do_el0_svc_compat+0x8c/0xdc\n[18853.878131] el0_svc_compat+0x10/0x1c\n[18853.878146] el0_sync_compat_handler+0xa8/0xcc\n[18853.878161] el0_sync_compat+0x188/0x1c0\n[18853.878171]\n[18853.878183] Freed by task 10927:\n[18853.878200] kasan_save_stack+0x38/0x68\n[18853.878215] kasan_set_track+0x28/0x3c\n[18853.878228] kasan_set_free_info+0x24/0x48\n[18853.878244] __kasan_slab_free+0x11c/0x154\n[18853.878259] kasan_slab_free+0x14/0x24\n[18853.878273] slab_free_freelist_hook+0xac/0x1b0\n[18853.878287] kfree+0x104/0x390\n[18853.878402] sta_info_free+0x198/0x210 [mac80211]\n[18853.878515] __sta_info_destroy_part2+0x230/0x2d4 [mac80211]\n[18853.878628] __sta_info_flush+0x300/0x37c [mac80211]\n[18853.878740] ieee80211_set_disassoc+0x2cc/0xa7c [mac80211]\n[18853.878851] ieee80211_mgd_deauth+0x4a4/0x10a0 [mac80211]\n[18853.878962] ieee80211_deauth+0x20/0x2c [mac80211]\n[18853.879057] rdev_deauth+0x7c/0x438 [cfg80211]\n[18853.879150] cfg80211_mlme_deauth+0x274/0x414 [cfg80211]\n[18853.879243] cfg80211_mlme_down+0xe4/0x118 [cfg80211]\n[18853.879335] cfg80211_disconnect+0x218/0x2d8 [cfg80211]\n[18853.879427] __cfg80211_leave+0x17c/0x240 [cfg80211]\n[18853.879519] cfg80211_leave+0x3c/0x58 [cfg80211]\n[18853.879611] wiphy_suspend+0xdc/0x200 [cfg80211]\n[18853.879628] dpm_run_callback+0x58/0x408\n[18853.879642] __device_suspend+0x4cc/0x864\n[18853.879658] async_suspend+0x34/0xf4\n[18\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c", "drivers/net/wireless/mediatek/mt76/mt76.h", "drivers/net/wireless/mediatek/mt76/mt7603/main.c", "drivers/net/wireless/mediatek/mt76/mt7615/main.c", "drivers/net/wireless/mediatek/mt76/mt76x02_util.c", "drivers/net/wireless/mediatek/mt76/mt7915/main.c", "drivers/net/wireless/mediatek/mt76/mt7921/main.c", "drivers/net/wireless/mediatek/mt76/tx.c"], "versions": [{"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "4448327b41738dbfcda680eb4935ff835568f468", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "d5f77f1dbb59feae81f88e44551e8e1d8a802d9a", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "51fb1278aa57ae0fc54adaa786e1965362bed4fb", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c", "drivers/net/wireless/mediatek/mt76/mt76.h", "drivers/net/wireless/mediatek/mt76/mt7603/main.c", "drivers/net/wireless/mediatek/mt76/mt7615/main.c", "drivers/net/wireless/mediatek/mt76/mt76x02_util.c", "drivers/net/wireless/mediatek/mt76/mt7915/main.c", "drivers/net/wireless/mediatek/mt76/mt7921/main.c", "drivers/net/wireless/mediatek/mt76/tx.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.58", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/4448327b41738dbfcda680eb4935ff835568f468"}, {"url": "https://git.kernel.org/stable/c/e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d"}, {"url": "https://git.kernel.org/stable/c/d5f77f1dbb59feae81f88e44551e8e1d8a802d9a"}, {"url": "https://git.kernel.org/stable/c/51fb1278aa57ae0fc54adaa786e1965362bed4fb"}], "title": "mt76: fix use-after-free by removing a non-RCU wcid pointer", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49328", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-27T18:16:47.103514Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:16:48.522Z"}}]}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0DFC6E4B-8C85-4056-80F1-C9129E42FE45", "versionEndExcluding": "5.15.58", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "15E2DD33-2255-4B76-9C15-04FF8CBAB252", "versionEndExcluding": "5.17.14", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8E122216-2E9E-4B3E-B7B8-D575A45BA3C2", "versionEndExcluding": "5.18.3", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix use-after-free by removing a non-RCU wcid pointer\n\nFixes an issue caught by KASAN about use-after-free in mt76_txq_schedule\nby protecting mtxq->wcid with rcu_lock between mt76_txq_schedule and\nsta_info_[alloc, free].\n\n[18853.876689] ==================================================================\n[18853.876751] BUG: KASAN: use-after-free in mt76_txq_schedule+0x204/0xaf8 [mt76]\n[18853.876773] Read of size 8 at addr ffffffaf989a2138 by task mt76-tx phy0/883\n[18853.876786]\n[18853.876810] CPU: 5 PID: 883 Comm: mt76-tx phy0 Not tainted 5.10.100-fix-510-56778d365941-kasan #5 0b01fbbcf41a530f52043508fec2e31a4215\n\n[18853.876840] Call trace:\n[18853.876861] dump_backtrace+0x0/0x3ec\n[18853.876878] show_stack+0x20/0x2c\n[18853.876899] dump_stack+0x11c/0x1ac\n[18853.876918] print_address_description+0x74/0x514\n[18853.876934] kasan_report+0x134/0x174\n[18853.876948] __asan_report_load8_noabort+0x44/0x50\n[18853.876976] mt76_txq_schedule+0x204/0xaf8 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877002] mt76_txq_schedule_all+0x2c/0x48 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877030] mt7921_tx_worker+0xa0/0x1cc [mt7921_common f0875ebac9d7b4754e1010549e7db50fbd90a047]\n[18853.877054] __mt76_worker_fn+0x190/0x22c [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877071] kthread+0x2f8/0x3b8\n[18853.877087] ret_from_fork+0x10/0x30\n[18853.877098]\n[18853.877112] Allocated by task 941:\n[18853.877131] kasan_save_stack+0x38/0x68\n[18853.877147] __kasan_kmalloc+0xd4/0xfc\n[18853.877163] kasan_kmalloc+0x10/0x1c\n[18853.877177] __kmalloc+0x264/0x3c4\n[18853.877294] sta_info_alloc+0x460/0xf88 [mac80211]\n[18853.877410] ieee80211_prep_connection+0x204/0x1ee0 [mac80211]\n[18853.877523] ieee80211_mgd_auth+0x6c4/0xa4c [mac80211]\n[18853.877635] ieee80211_auth+0x20/0x2c [mac80211]\n[18853.877733] rdev_auth+0x7c/0x438 [cfg80211]\n[18853.877826] cfg80211_mlme_auth+0x26c/0x390 [cfg80211]\n[18853.877919] nl80211_authenticate+0x6d4/0x904 [cfg80211]\n[18853.877938] genl_rcv_msg+0x748/0x93c\n[18853.877954] netlink_rcv_skb+0x160/0x2a8\n[18853.877969] genl_rcv+0x3c/0x54\n[18853.877985] netlink_unicast_kernel+0x104/0x1ec\n[18853.877999] netlink_unicast+0x178/0x268\n[18853.878015] netlink_sendmsg+0x3cc/0x5f0\n[18853.878030] sock_sendmsg+0xb4/0xd8\n[18853.878043] ____sys_sendmsg+0x2f8/0x53c\n[18853.878058] ___sys_sendmsg+0xe8/0x150\n[18853.878071] __sys_sendmsg+0xc4/0x1f4\n[18853.878087] __arm64_compat_sys_sendmsg+0x88/0x9c\n[18853.878101] el0_svc_common+0x1b4/0x390\n[18853.878115] do_el0_svc_compat+0x8c/0xdc\n[18853.878131] el0_svc_compat+0x10/0x1c\n[18853.878146] el0_sync_compat_handler+0xa8/0xcc\n[18853.878161] el0_sync_compat+0x188/0x1c0\n[18853.878171]\n[18853.878183] Freed by task 10927:\n[18853.878200] kasan_save_stack+0x38/0x68\n[18853.878215] kasan_set_track+0x28/0x3c\n[18853.878228] kasan_set_free_info+0x24/0x48\n[18853.878244] __kasan_slab_free+0x11c/0x154\n[18853.878259] kasan_slab_free+0x14/0x24\n[18853.878273] slab_free_freelist_hook+0xac/0x1b0\n[18853.878287] kfree+0x104/0x390\n[18853.878402] sta_info_free+0x198/0x210 [mac80211]\n[18853.878515] __sta_info_destroy_part2+0x230/0x2d4 [mac80211]\n[18853.878628] __sta_info_flush+0x300/0x37c [mac80211]\n[18853.878740] ieee80211_set_disassoc+0x2cc/0xa7c [mac80211]\n[18853.878851] ieee80211_mgd_deauth+0x4a4/0x10a0 [mac80211]\n[18853.878962] ieee80211_deauth+0x20/0x2c [mac80211]\n[18853.879057] rdev_deauth+0x7c/0x438 [cfg80211]\n[18853.879150] cfg80211_mlme_deauth+0x274/0x414 [cfg80211]\n[18853.879243] cfg80211_mlme_down+0xe4/0x118 [cfg80211]\n[18853.879335] cfg80211_disconnect+0x218/0x2d8 [cfg80211]\n[18853.879427] __cfg80211_leave+0x17c/0x240 [cfg80211]\n[18853.879519] cfg80211_leave+0x3c/0x58 [cfg80211]\n[18853.879611] wiphy_suspend+0xdc/0x200 [cfg80211]\n[18853.879628] dpm_run_callback+0x58/0x408\n[18853.879642] __device_suspend+0x4cc/0x864\n[18853.879658] async_suspend+0x34/0xf4\n[18\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mt76: corrige el use-after-free eliminando un puntero wcid que no sea RCU Corrige un problema detectado por KASAN sobre el use-after-free en mt76_txq_schedule protegiendo mtxq->wcid con rcu_lock entre mt76_txq_schedule y sta_info_[alloc, free]. [18853.876689] ======================================================================= [18853.876751] ERROR: KASAN: use-after-free en mt76_txq_schedule+0x204/0xaf8 [mt76] [18853.876773] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffffffaf989a2138 por la tarea mt76-tx phy0/883 [18853.876786] [18853.876810] CPU: 5 PID: 883 Comm: mt76-tx phy0 No contaminado 5.10.100-fix-510-56778d365941-kasan #5 0b01fbbcf41a530f52043508fec2e31a4215 [18853.876840] Seguimiento de llamadas: [18853.876861] dump_backtrace+0x0/0x3ec [18853.876878] show_stack+0x20/0x2c [18853.876899] dump_stack+0x11c/0x1ac [18853.876918] print_address_description+0x74/0x514 [18853.876934] kasan_report+0x134/0x174 [18853.876948] __asan_report_load8_noabort+0x44/0x50 [18853.876976] mt76_txq_schedule+0x204/0xaf8 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2] [18853.877002] mt76_txq_schedule_all+0x2c/0x48 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2] [18853.877030] mt7921_tx_worker+0xa0/0x1cc [mt7921_common f0875ebac9d7b4754e1010549e7db50fbd90a047] [18853.877054] __mt76_worker_fn+0x190/0x22c [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2] [18853.877071] kthread+0x2f8/0x3b8 [18853.877087] ret_from_fork+0x10/0x30 [18853.877098] [18853.877112] Asignado por la tarea 941: [18853.877131] kasan_save_stack+0x38/0x68 [18853.877147] __kasan_kmalloc+0xd4/0xfc [18853.877163] kasan_kmalloc+0x10/0x1c [18853.877177] __kmalloc+0x264/0x3c4 [18853.877294] sta_info_alloc+0x460/0xf88 [mac80211] [18853.877410] ieee80211_prep_connection+0x204/0x1ee0 [mac80211] [18853.877523] ieee80211_mgd_auth+0x6c4/0xa4c [mac80211] [18853.877635] ieee80211_auth+0x20/0x2c [mac80211] [18853.877733] rdev_auth+0x7c/0x438 [cfg80211] [18853.877826] cfg80211_mlme_auth+0x26c/0x390 [cfg80211] [18853.877919] nl80211_authenticate+0x6d4/0x904 [cfg80211] [18853.877938] genl_rcv_msg+0x748/0x93c [18853.877954] netlink_rcv_skb+0x160/0x2a8 [18853.877969] genl_rcv+0x3c/0x54 [18853.877985] netlink_unicast_kernel+0x104/0x1ec [18853.877999] netlink_unicast+0x178/0x268 [18853.878015] netlink_sendmsg+0x3cc/0x5f0 [18853.878030] sock_sendmsg+0xb4/0xd8 [18853.878043] ____sys_sendmsg+0x2f8/0x53c [18853.878058] ___sys_sendmsg+0xe8/0x150 [18853.878071] __sys_sendmsg+0xc4/0x1f4 [18853.878087] __arm64_compat_sys_sendmsg+0x88/0x9c [18853.878101] el0_svc_common+0x1b4/0x390 [18853.878115] do_el0_svc_compat+0x8c/0xdc [18853.878131] el0_svc_compat+0x10/0x1c [18853.878146] el0_sync_compat_handler+0xa8/0xcc [18853.878161] el0_sync_compat+0x188/0x1c0 [18853.878171] [18853.878183] Liberado por la tarea 10927: [18853.878200] kasan_save_stack+0x38/0x68 [18853.878215] kasan_set_track+0x28/0x3c [18853.878228] kasan_set_free_info+0x24/0x48 [18853.878244] __kasan_slab_free+0x11c/0x154 [18853.878259] kasan_slab_free+0x14/0x24 [18853.878273] slab_free_freelist_hook+0xac/0x1b0 [18853.878287] kfree+0x104/0x390 [18853.878402] sta_info_free+0x198/0x210 [mac80211] [18853.878515] __sta_info_destroy_part2+0x230/0x2d4 [mac80211] [18853.878628] __sta_info_flush+0x300/0x37c [mac80211] [18853.878740] ieee80211_set_disassoc+0x2cc/0xa7c [mac80211] [18853.878851] ieee80211_mgd_deauth+0x4a4/0x10a0 [mac80211] [18853.878962] ieee80211_deauth+0x20/0x2c [mac80211] [18853.879057] rdev_deauth+0x7c/0x438 [cfg80211] [18853.879150] cfg80211_mlme_deauth+0x274/0x414 [cfg80211] [18853.879243] cfg80211_mlme_down+0xe4/0x118 [cfg80211] [18853.879335] cfg80211_disconnect+0x218/0x2d8 [cfg80211] [18853.879427] __cfg80211_leave+0x17c/0x240 [cfg80211] [18853.879519] cfg80211_leave+0x3c/0x58 [cfg80211] [18853.879611] wiphy_suspend+0xdc/0x200 [cfg80211] [18853.879628] dpm_run_callback+0x58/0x408 [18853.879642] __device_suspend+0x4cc/0x864 [18853.879658] async_suspend+0x34/0xf4 [18 ---truncado---"}], "id": "CVE-2022-49328", "lastModified": "2025-03-25T14:50:40.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-02-26T07:01:09.610", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4448327b41738dbfcda680eb4935ff835568f468"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51fb1278aa57ae0fc54adaa786e1965362bed4fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d5f77f1dbb59feae81f88e44551e8e1d8a802d9a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2023:2951", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-477.10.1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}, {"advisory": "RHSA-2025:10179", "cpe": "cpe:/o:redhat:rhel_aus:8.2", "package": "kernel-0:4.18.0-193.156.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-07-02T00:00:00Z"}, {"advisory": "RHSA-2025:9498", "cpe": "cpe:/o:redhat:rhel_aus:8.6", "package": "kernel-0:4.18.0-372.149.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-06-24T00:00:00Z"}, {"advisory": "RHSA-2025:9498", "cpe": "cpe:/o:redhat:rhel_tus:8.6", "package": "kernel-0:4.18.0-372.149.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-06-24T00:00:00Z"}, {"advisory": "RHSA-2025:9498", "cpe": "cpe:/o:redhat:rhel_e4s:8.6", "package": "kernel-0:4.18.0-372.149.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-06-24T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2025:9494", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "kernel-0:5.14.0-70.134.1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-06-24T00:00:00Z"}, {"advisory": "RHSA-2025:9493", "cpe": "cpe:/a:redhat:rhel_e4s:9.0::nfv", "package": "kernel-rt-0:5.14.0-70.134.1.rt21.206.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-06-24T00:00:00Z"}], "bugzilla": {"description": "kernel: mt76: fix use-after-free by removing a non-RCU wcid pointer", "id": "2348217", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348217"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmt76: fix use-after-free by removing a non-RCU wcid pointer\nFixes an issue caught by KASAN about use-after-free in mt76_txq_schedule\nby protecting mtxq->wcid with rcu_lock between mt76_txq_schedule and\nsta_info_[alloc, free].\n[18853.876689] ==================================================================\n[18853.876751] BUG: KASAN: use-after-free in mt76_txq_schedule+0x204/0xaf8 [mt76]\n[18853.876773] Read of size 8 at addr ffffffaf989a2138 by task mt76-tx phy0/883\n[18853.876786]\n[18853.876810] CPU: 5 PID: 883 Comm: mt76-tx phy0 Not tainted 5.10.100-fix-510-56778d365941-kasan #5 0b01fbbcf41a530f52043508fec2e31a4215\n[18853.876840] Call trace:\n[18853.876861] dump_backtrace+0x0/0x3ec\n[18853.876878] show_stack+0x20/0x2c\n[18853.876899] dump_stack+0x11c/0x1ac\n[18853.876918] print_address_description+0x74/0x514\n[18853.876934] kasan_report+0x134/0x174\n[18853.876948] __asan_report_load8_noabort+0x44/0x50\n[18853.876976] mt76_txq_schedule+0x204/0xaf8 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877002] mt76_txq_schedule_all+0x2c/0x48 [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877030] mt7921_tx_worker+0xa0/0x1cc [mt7921_common f0875ebac9d7b4754e1010549e7db50fbd90a047]\n[18853.877054] __mt76_worker_fn+0x190/0x22c [mt76 074e03e4640e97fe7405ee1fab547b81c4fa45d2]\n[18853.877071] kthread+0x2f8/0x3b8\n[18853.877087] ret_from_fork+0x10/0x30\n[18853.877098]\n[18853.877112] Allocated by task 941:\n[18853.877131] kasan_save_stack+0x38/0x68\n[18853.877147] __kasan_kmalloc+0xd4/0xfc\n[18853.877163] kasan_kmalloc+0x10/0x1c\n[18853.877177] __kmalloc+0x264/0x3c4\n[18853.877294] sta_info_alloc+0x460/0xf88 [mac80211]\n[18853.877410] ieee80211_prep_connection+0x204/0x1ee0 [mac80211]\n[18853.877523] ieee80211_mgd_auth+0x6c4/0xa4c [mac80211]\n[18853.877635] ieee80211_auth+0x20/0x2c [mac80211]\n[18853.877733] rdev_auth+0x7c/0x438 [cfg80211]\n[18853.877826] cfg80211_mlme_auth+0x26c/0x390 [cfg80211]\n[18853.877919] nl80211_authenticate+0x6d4/0x904 [cfg80211]\n[18853.877938] genl_rcv_msg+0x748/0x93c\n[18853.877954] netlink_rcv_skb+0x160/0x2a8\n[18853.877969] genl_rcv+0x3c/0x54\n[18853.877985] netlink_unicast_kernel+0x104/0x1ec\n[18853.877999] netlink_unicast+0x178/0x268\n[18853.878015] netlink_sendmsg+0x3cc/0x5f0\n[18853.878030] sock_sendmsg+0xb4/0xd8\n[18853.878043] ____sys_sendmsg+0x2f8/0x53c\n[18853.878058] ___sys_sendmsg+0xe8/0x150\n[18853.878071] __sys_sendmsg+0xc4/0x1f4\n[18853.878087] __arm64_compat_sys_sendmsg+0x88/0x9c\n[18853.878101] el0_svc_common+0x1b4/0x390\n[18853.878115] do_el0_svc_compat+0x8c/0xdc\n[18853.878131] el0_svc_compat+0x10/0x1c\n[18853.878146] el0_sync_compat_handler+0xa8/0xcc\n[18853.878161] el0_sync_compat+0x188/0x1c0\n[18853.878171]\n[18853.878183] Freed by task 10927:\n[18853.878200] kasan_save_stack+0x38/0x68\n[18853.878215] kasan_set_track+0x28/0x3c\n[18853.878228] kasan_set_free_info+0x24/0x48\n[18853.878244] __kasan_slab_free+0x11c/0x154\n[18853.878259] kasan_slab_free+0x14/0x24\n[18853.878273] slab_free_freelist_hook+0xac/0x1b0\n[18853.878287] kfree+0x104/0x390\n[18853.878402] sta_info_free+0x198/0x210 [mac80211]\n[18853.878515] __sta_info_destroy_part2+0x230/0x2d4 [mac80211]\n[18853.878628] __sta_info_flush+0x300/0x37c [mac80211]\n[18853.878740] ieee80211_set_disassoc+0x2cc/0xa7c [mac80211]\n[18853.878851] ieee80211_mgd_deauth+0x4a4/0x10a0 [mac80211]\n[18853.878962] ieee80211_deauth+0x20/0x2c [mac80211]\n[18853.879057] rdev_deauth+0x7c/0x438 [cfg80211]\n[18853.879150] cfg80211_mlme_deauth+0x274/0x414 [cfg80211]\n[18853.879243] cfg80211_mlme_down+0xe4/0x118 [cfg80211]\n[18853.879335] cfg80211_disconnect+0x218/0x2d8 [cfg80211]\n[18853.879427] __cfg80211_leave+0x17c/0x240 [cfg80211]\n[18853.879519] cfg80211_leave+0x3c/0x58 [cfg80211]\n[18853.879611] wiphy_suspend+0xdc/0x200 [cfg80211]\n[18853.879628] dpm_run_callback+0x58/0x408\n[18853.879642] __device_suspend+0x4cc/0x864\n[18853.879658] async_suspend+0x34/0xf4\n[18\n---truncated---", "A vulnerability was found in the Linux kernel's mt76 wi-fi driver. A concurrency bug causes the `mtxq` TX queue to maintain a raw pointer to a `wcid` structure (`mtxq->wcid`) that might be freed by the time it is accessed. This issue can lead to a use-after-free scenario, leading to system instability, memory corruption, and potentially arbitrary code execution."], "name": "CVE-2022-49328", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49328\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49328\nhttps://lore.kernel.org/linux-cve-announce/2025022638-CVE-2022-49328-ec2f@gregkh/T"], "threat_severity": "Moderate"}

{}